I'm not sure if I understand you correctly. What does the picture have to do with the game language? Are you mean the language that I use to write the picture file names?
That is Portuguese from Brazil. It is like I said before, I believe you could use any language you want.
But that plugin is not a language manager, is kinda a Font Manager. Regarding of this plugin there is a free version that you can test and see if it will work for your purposes.